Heterogeneous honeycomb type adsorption mechanism with stable flow direction

Abstract

The utility model relates to a heterogeneous honeycomb type adsorption mechanism with a stable flow direction. The existing adsorption towers are easy to cause gas channeling, so that the quality of finished products is influenced. The device comprises a plurality of adsorption assemblies arranged in parallel and gas conveying assemblies connected with the adsorption assemblies, each adsorption assembly comprises two adsorption towers which are oppositely arranged in a split mode, and each gas conveying assembly comprises a main pipe and an auxiliary pipe which is connected between the main pipe and the corresponding adsorption tower in a bridging mode. A one-way valve for guiding airflow to flow along a preset path is arranged on the auxiliary pipe so as to limit the airflow from flowing among the adsorption towers. The one-way valves corresponding to the adsorption towers are arranged on the auxiliary pipes, it is ensured that airflow flows through the adsorption towers along the preset paths, backflow airflow caused by airflow flowing between the adsorption towers is prevented, it is ensured that all the adsorption towers obtain the same raw material gas, the oxygen yield and concentration are ensured, and the use experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas preparation, specifically to a heterogeneous honeycomb adsorption mechanism. Background Technology

[0002] The existing oxygen generator includes a feed gas mechanism, an adsorption mechanism, and a finished product storage mechanism. The adsorption mechanism comprises several adsorption components and a gas delivery mechanism arranged in parallel. Each adsorption component includes two opposing adsorption towers, which work alternately to improve production efficiency. The adsorption towers are arranged in a honeycomb pattern and can be modified to fit different installation spaces, allowing the adsorption mechanism to be installed within a pre-defined area. By setting multiple independently operable adsorption components, the oxygen generator's output can be adjusted, enabling flexible control as needed. During use, the gas delivery component supplies and discharges gas to each adsorption tower within all adsorption components. Due to the gas delivery distance and the difference in residual gas pressure in each adsorption tower, synchronous gas supply between adsorption towers is not possible. There is a time difference in when the gas pressure in each adsorption tower reaches the preset value. The adsorption tower that reaches the preset pressure first will have backflow between it and the adsorption tower that reaches the preset pressure later. When the nitrogen in the high-pressure air is input into the adsorption tower from bottom to top, it is retained at the bottom of the adsorption tower, which increases the nitrogen content of the backflow. As a result, the adsorption tower that draws in the backflow will reduce its oxygen production and concentration due to the increased nitrogen content in the raw gas, affecting the user experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a heterogeneous honeycomb adsorption mechanism with stable flow direction. By setting one-way valves corresponding to each adsorption tower on the secondary pipe, backflow of airflow due to airflow crossover between adsorption towers is prevented, thereby ensuring that each adsorption tower obtains the same raw material gas, guaranteeing oxygen production and concentration, and improving the user experience.

[0004] This invention achieves its purpose through the following method: a heterogeneous honeycomb adsorption mechanism with stable flow direction, comprising several adsorption components arranged in parallel and a gas delivery component connected to each adsorption component. Each adsorption component includes two opposing adsorption towers. The gas delivery component includes a main pipe and a secondary pipe bridging the main pipe and the corresponding adsorption tower. The secondary pipe is equipped with a one-way valve to guide the airflow along a preset path, thereby limiting airflow cross-flow between adsorption towers. By installing one-way valves corresponding to each adsorption tower on the secondary pipe, the airflow is ensured to flow through the adsorption towers along the preset path, preventing backflow caused by airflow cross-flow between adsorption towers. This ensures that each adsorption tower obtains the same raw material gas, guarantees oxygen production and concentration, and improves the user experience.

[0005] Preferably, the one-way valves are installed one-to-one with the secondary pipes. The one-way valves guide the airflow, ensuring that the airflow can only flow in a preset direction. Each secondary pipe is equipped with a one-way valve, so that the airflow in the secondary pipe can only flow in a single direction, preventing the airflow from flowing between different adsorption towers through the secondary pipes, ensuring that each adsorption tower obtains raw gas with a consistent oxygen concentration, and guaranteeing the output and quality of oxygen.

[0006] Preferably, the secondary pipe is equipped with a ball valve for controlling its opening and closing. By opening and closing the ball valve, the connection status of the corresponding secondary pipe is controlled, thereby controlling the flow interruption of the adsorption tower. This allows each adsorption tower to be independently started and stopped according to its needs, thus meeting the usage requirements.

[0007] Preferably, the gas delivery assembly is an inlet assembly, with the main pipe being the primary inlet pipe and the secondary pipe being the secondary inlet pipe. The airflow in the main inlet pipe is input into the corresponding adsorption tower through the secondary inlet pipe equipped with a one-way valve. High-pressure air is input into the adsorption tower through the inlet assembly to provide raw material gas for the adsorption tower. By installing one-way valves on each secondary inlet pipe, backflow of gas in the adsorption tower is prevented, ensuring that each adsorption tower obtains raw material gas with the same oxygen content. This, in turn, ensures that each adsorption tower can produce product gas with the same yield and concentration, thereby ensuring that the final oxygen concentration meets the usage requirements and facilitates control and subsequent use.

[0008] Preferably, the bottom of the adsorption tower is provided with an air inlet that communicates with the secondary air inlet pipe. The air inlet is used to connect to the secondary air inlet pipe to ensure that the adsorption tower can effectively receive the raw material gas.

[0009] Preferably, the gas delivery assembly is an exhaust assembly, with the main pipe being the primary exhaust pipe and the secondary pipe being the secondary exhaust pipe. The gas generated inside the adsorption tower converges to the main exhaust pipe through the secondary exhaust pipe equipped with a one-way valve and is then centrally discharged. Oxygen generated in the adsorption tower is transported externally through the exhaust assembly. The one-way valve is used to prevent oxygen output from the adsorption tower from flowing to other adsorption towers, ensuring that each adsorption tower operates independently and without interference.

[0010] Preferably, the top of the adsorption tower is provided with an exhaust port that communicates with the secondary exhaust pipe. The exhaust port is used to connect to the secondary exhaust pipe, to collect oxygen from the adsorption tower, and to collect and discharge it through the main exhaust pipe.

[0011] Preferably, the adsorption components are in at least two groups, each group capable of independently switching between operating and shutdown states. By setting multiple independently operating adsorption components to control the oxygen generator's output, it ensures that each adsorption component operates at full capacity, improving work efficiency, and also ensures that the oxygen generator can control the number of operating adsorption components according to output demand, reducing energy consumption and operating costs.

[0012] Preferably, the main pipe is T-shaped, including a horizontal section connected in series with each secondary pipe and a vertical section located in the middle of the horizontal section and connected to the outside. The vertical section spans between the outside space and the horizontal section, and is fixedly connected to the middle of the horizontal section to ensure that the airflow resistance at both ends of the horizontal section is the same, thereby ensuring a balanced airflow within the adsorption tower.

[0013] Preferably, the transverse section is U-shaped, with the diameter at both ends being larger than the diameter at the middle section, forming buffer cavities at both ends that communicate with the secondary pipes. These buffer cavities act as buffers for the flowing air, ensuring that the airflow is evenly distributed to each secondary pipe, thereby guaranteeing a balanced airflow rate in each adsorption tower.

[0014] Preferably, the middle section of the horizontal section is equipped with silencers on both sides of the vertical section. The silencers reduce noise generated by airflow.

[0015] Preferably, the buffer cavity is tubular, with each secondary tube arranged along the length of the buffer cavity to connect the secondary tubes in series, which is suitable for structures with a small number of secondary tubes.

[0016] Preferably, the buffer chamber is cylindrical, with each secondary pipe disposed on the end face of the buffer chamber. The axes of the buffer chamber and the secondary pipes are aligned in the same direction to reduce the distance between the secondary pipes and the middle section of the transverse section. The secondary pipes are concentrated on the end face of the buffer chamber, effectively reducing the loss of high-pressure airflow during flow, thereby ensuring that the high-pressure airflow obtained by each secondary pipe has the same pressure, which is suitable for structures with a large number of secondary pipes.

[0017] The beneficial effects of this utility model are as follows: By setting one-way valves corresponding to each adsorption tower on the secondary pipe, the airflow is ensured to flow through the adsorption tower along the preset path, preventing backflow of airflow between adsorption towers due to airflow crossover, thereby ensuring that each adsorption tower obtains the same raw material gas, guaranteeing oxygen production and concentration, and improving the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the adsorption mechanism.

[0019] Figure 2 This is a schematic diagram of the assembly structure of the main pipe and the check valve;

[0020] In the diagram: 1. Adsorption tower, 2. Gas delivery assembly, 3. Check valve, 4. Main inlet pipe, 5. Secondary inlet pipe, 6. Inlet, 7. Main exhaust pipe, 8. Secondary exhaust pipe, 9. Exhaust port, 10. Horizontal section, 11. Vertical section, 12. Buffer chamber, 13. Silencer, 14. Ball valve. Detailed Implementation

[0021] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1 and 2 The illustrated heterogeneous honeycomb adsorption mechanism with stable flow direction comprises several adsorption components arranged in parallel and a gas delivery component 2 connected to each adsorption component. Each adsorption component includes two opposing adsorption towers 1. The gas delivery component 2 includes a main pipe and a secondary pipe bridging the main pipe and the corresponding adsorption tower 1. The secondary pipe is equipped with a one-way valve 3 to guide the airflow along a preset path, thus limiting airflow cross-flow between the adsorption towers 1. The one-way valve 3 on the secondary pipe, corresponding to each adsorption tower 1, ensures that the airflow flows through the adsorption tower 1 along the preset path, preventing backflow due to airflow cross-flow between the adsorption towers 1. This ensures that each adsorption tower 1 obtains the same raw material gas, guaranteeing oxygen production and concentration, and improving the user experience.

[0023] In actual operation, the gas delivery assembly 2 is an air intake assembly, the main pipe is the main air intake pipe 4, and the auxiliary pipe is the auxiliary air intake pipe 5. The airflow in the main air intake pipe 4 is input into the corresponding adsorption tower 1 through the auxiliary air intake pipe 5 equipped with a one-way valve 3. The one-way valve 3 is installed on the auxiliary air intake pipe 5 so that the airflow in the main air intake pipe 4 can only be delivered to the adsorption tower 1 through the auxiliary air intake pipe 5. This effectively prevents the formation of backflow airflow in the adsorption tower 1 that is diverted to other adsorption towers 1 through the auxiliary air intake pipe 5 and the main air intake pipe 4, ensuring that the raw gas obtained by each adsorption tower 1 has the same gas pressure and oxygen content, thereby obtaining the same output and concentration of oxygen under the same conditions, which facilitates unified control and adjustment of each adsorption assembly.

[0024] In actual operation, the gas delivery assembly 2 is an exhaust assembly, the main pipe is the main exhaust pipe 7, and the secondary pipe is the secondary exhaust pipe 8. The gas generated in the adsorption tower 1 converges to the main exhaust pipe 7 through the secondary exhaust pipe 8 equipped with a one-way valve 3 and is then centrally discharged. The one-way valve 3 on the secondary exhaust pipe 8 ensures that the oxygen output from the adsorption tower 1 can only be delivered to the main exhaust pipe 7 through the secondary exhaust pipe 8, preventing the oxygen output from the adsorption tower 1 from flowing into other adsorption towers 1 and affecting normal operation.

[0025] In actual operation, the bottom of the adsorption tower 1 is provided with an air inlet 6 connected to the auxiliary air inlet pipe 5. One end of the auxiliary air inlet pipe 5 is connected to the main air inlet pipe 4, and the other end is connected to the air inlet 6, ensuring that the raw material gas can be smoothly transported into the adsorption tower 1. The top of the adsorption tower 1 is provided with an exhaust port 9 connected to the auxiliary exhaust pipe 8. One end of the auxiliary exhaust pipe 8 is connected to the main exhaust pipe 7, and the other end is connected to the exhaust port 9, ensuring that the oxygen generated in the adsorption tower 1 can be smoothly transported outward.

[0026] In actual operation, the one-way valve 3 is set one-to-one with the secondary pipe to ensure that the airflow direction in each secondary pipe is constant, thereby ensuring that each adsorption tower 1 can operate independently without interfering with each other.

[0027] In practical operation, the adsorption components are at least two groups, and each group can independently switch between running and stopped states. Preferably, there are four groups of adsorption components, each with the same output, allowing the oxygen generator to be adjusted in multiple levels, thus regulating and controlling the oxygen generator's output even when the adsorption components are running at full capacity. Furthermore, the number of adsorption components can also be three, five, six, etc., all of which should be considered embodiments of this invention.

[0028] In actual operation, the main pipe is T-shaped, including a horizontal section 10 connected in series with each secondary pipe and a vertical section 11 located in the middle of the horizontal section 10 and connected to the outside. The horizontal section 10 is U-shaped, with the diameter of both ends of the horizontal section 10 being larger than the diameter of the middle section, so as to form a buffer cavity 12 at both ends of the horizontal section 10 that communicates with the secondary pipe. The middle section of the horizontal section 10 is provided with silencers 13 on both sides of the vertical section 11. The two adsorption towers 1 of each adsorption component are respectively located on both sides, so that the adsorption towers 1 of the adsorption component are placed on both sides and respectively connected to the two ends of the horizontal section 10 of the secondary pipe. The horizontal section 10 connects the two adsorption towers 1 in the same adsorption component through the two ends, which not only ensures that each adsorption component can operate at the same frequency and use the corresponding buffer cavity 12 for air supply and exhaust, but also symmetrically arranges the adsorption towers 1, which facilitates pipeline laying.

[0029] In actual operation, the buffer chamber 12 is tubular, with each secondary pipe positioned along the length of the buffer chamber. The axes of the buffer chamber and each secondary pipe are perpendicular to each other, allowing the buffer chamber to communicate with each secondary pipe and facilitate gas transport. Alternatively, the buffer chamber 12 may be cylindrical, with each secondary pipe positioned on its end face. The axes of the buffer chamber 12 and the secondary pipes are aligned in the same direction to reduce the distance between the secondary pipes and the middle section of the transverse section 10. This should also be considered a specific embodiment of this utility model.

[0030] In actual operation, the secondary pipe is equipped with a ball valve 14 for controlling its opening and closing. By opening and closing the ball valve 14, the connection status of the corresponding secondary pipe is controlled, thereby controlling the airflow interruption of the adsorption tower. This allows each adsorption tower to be independently started and stopped according to its needs, meeting operational requirements. Preferably, there are two ball valves 14, respectively installed on the secondary exhaust pipe 8 and the secondary inlet pipe 5, which can control the airflow interruption of the connected adsorption towers.

Claims

1. A flow-stable heterogeneous honeycomb adsorption mechanism comprising a plurality of parallelly arranged adsorption assemblies and a gas delivery assembly (2) connected with each adsorption assembly, the adsorption assembly comprising two pairs of oppositely arranged adsorption towers (1), characterized in that, The gas conveying assembly (2) comprises a main pipe and a sub-pipe connected between the main pipe and the corresponding adsorption tower (1), and the sub-pipe is provided with a one-way valve (3) for guiding the gas flow along a preset path to limit the gas flow between the adsorption towers (1).

2. A flow-stable hetero-cellular adsorbent mechanism according to claim 1, wherein, The one-way valve (3) is arranged one by one corresponding to the sub-pipe; or, the sub-pipe is provided with a ball valve (14) for controlling opening and closing.

3. The isomeric honeycomb adsorbent mechanism of claim 1, wherein, The gas conveying assembly (2) is an air inlet assembly, the main pipe is a main air inlet pipe (4), the sub-pipe is a sub-air inlet pipe (5), and the gas flow in the main air inlet pipe (4) is input into the corresponding adsorption tower (1) through the sub-air inlet pipe (5) provided with the one-way valve (3).

4. A flow-stable hetero-cellular adsorbent mechanism according to claim 3, wherein, The bottom of the adsorption tower (1) is provided with an air inlet (6) connected with the sub-air inlet pipe (5).

5. The flow-stable hetero-cellular adsorbent mechanism of claim 1, wherein, The gas conveying assembly (2) is an air outlet assembly, the main pipe is a main air outlet pipe (7), the sub-pipe is a sub-air outlet pipe (8), and the gas generated in the adsorption tower (1) is gathered and concentrated to the main air outlet pipe (7) through the sub-air outlet pipe (8) provided with the one-way valve (3) and then discharged externally.

6. A flow-stable hetero-cellular adsorbent mechanism according to claim 5, wherein, The top of the adsorption tower (1) is provided with an air outlet (9) connected with the sub-air outlet pipe (8).

7. A flow-stable hetero-cellular adsorbent mechanism according to any one of claims 1 to 6, wherein, The adsorption assembly is at least two groups, and each group of adsorption assemblies can be independently switched between a running state and a shutdown state.

8. A flow-stable hetero-cellular adsorbent mechanism according to any one of claims 1-6, wherein, The main pipe is T-shaped, comprising a horizontal section (10) connected with each sub-pipe and a vertical section (11) arranged in the middle of the horizontal section (10) and connected with the outside.

9. A flow-stable hetero-cellular adsorbent mechanism according to claim 8, wherein, The horizontal section (10) is in the shape of a Chinese character, and the diameters of the two ends of the horizontal section (10) are greater than that of the middle section, so as to form a buffer cavity (12) connected with the sub-pipe at the two ends of the horizontal section (10).

10. A flow-stable hetero-cellular adsorbent mechanism according to claim 9, wherein, The middle section of the horizontal section (10) is provided with a silencer (13) on both sides of the vertical section (11); or, the buffer cavity (12) is tubular, and each sub-pipe is arranged along the length direction of the buffer cavity; or, the buffer cavity (12) is cylindrical, each sub-pipe is arranged on the end face of the buffer cavity (12), and the axes of the buffer cavity (12) and the sub-pipe are arranged in the same direction, so as to reduce the distance between the sub-pipe and the middle section of the horizontal section (10).

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